The table shows the number of students who wear glasses in three Primary 2 classes in a school.
- How many students in the three classes do not wear glasses?
- The total number of students who wear glasses is the same as the total number of students in Class 2A. How many students in Class 2B wear glasses?
(a)
Total number of students not wearing glasses
= 29 + 20 + 10
= 59
(b)
Total number of students in Class 2A
= 29 + 9
= 38
Number of students wearing glasses in Class 2B
= 38 - (9 + 8)
= 38 - 17
= 21
Answer(s): (a) 59; (b) 21